Knight ED 10x42高清双筒望远镜 - 户外探险、观鸟、旅行必备光学设备

Features. Extra-low dispersion ED glass produces outstanding color fidelity and high quality image. Bak-4 Phase Coated roof Prisms. 100 Fully Multi-Coated opticsGreen-coated on four sides of the prisms and large aperture apochromatic lens higher image quality in all lighting conditions even water-repellent coatings for the lenses. Armoured rubber Binocular. Long eye relief and twist up eyecups great for eyeglass wearers. Magnesium alloy body provides light weight. Fully Waterproof and Fog proof nitrogen filled Submerge to 1 m. for 15 minutes. Ergonomic open hinge designSpecifications. Binoculars Series - KNIGHT ED-Series Binoculars.. Focus System - Central.. Resolution - 5.5.. Size - Full Size Binoculars.. Eye Relief - 17.22 mm.. Water Proof.. Fog Proof.. Magnification - 10 x.. Objective Lens Diameter - 42 mm.. Field of View at 1000 Yards - 351 ft.. Field of View Degree - 6.7.. Exit Pupil - 3.83 mm.. Focus Type - Center Focus.. Close Focusing Distance - 5.56 ft.. Groups and Elements for Eyepiece - 5G6E.. Groups and Elements for Objective Lenses - 3G4E.. Barrel - Mg-AL.. Dimensions - 5.51 x 5.23 x 2 in.. Item Weight - 26.8 oz.